Manufacturing method of nickel-cadmium battery cadmium negative electrode
A technology of nickel-cadmium batteries and manufacturing methods, which is applied to battery electrodes, alkaline storage battery electrodes, electrode carriers/collectors, etc., can solve the problems of waste of negative active materials, serious self-discharge, and mismatched structure of positive pole pieces, etc., and achieve The effect of prolonging cycle life and storage life, suppressing self-discharge and memory effect, and improving the effect of high-current charging and discharging
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Embodiment 1
[0035] In the first step, the negative electrode active material coating 1 is an active material mixture composed of ultrafine cadmium oxide (CdO), nano-graphite and carbon nanotubes mixed in a mass ratio of 7.5:0.5:2;
[0036] And a mixed binder of polytetrafluoroethylene (PTFE) and polyvinylidene fluoride (PVDF) mixed in an equal mass ratio of 2% of the mass of the active material mixture, as a negative electrode mixed binder (polytetrafluoroethylene is polytetrafluoroethylene Polytetrafluoroethylene emulsion with a solid content of 60% vinyl fluoride, polyvinylidene fluoride is a polyvinylidene fluoride emulsion with a solid content of 60% polyvinylidene fluoride);
[0037] And sodium carboxymethylcellulose (CMC) accounting for 1% by mass of the active substance mixture as a negative electrode thickener;
[0038] And the distilled water that accounts for the mass ratio of active substance mixture 25%;
[0039] mixing the active material mixture, negative electrode mixing b...
Embodiment 2
[0043]In the first step, the negative electrode active material coating 1 is an active material mixture composed of superfine cadmium oxide (CdO), nano-graphite and carbon nanotubes mixed in a mass ratio of 7.5:0.6:3 in sequence;
[0044] And a mixed binder of polytetrafluoroethylene (PTFE) and polyvinylidene fluoride (PVDF) mixed in an equal mass ratio of 3% of the mass of the active material mixture, as a negative electrode mixed binder (polytetrafluoroethylene is polytetrafluoroethylene Polytetrafluoroethylene emulsion with a solid content of 60% vinyl fluoride, polyvinylidene fluoride is a polyvinylidene fluoride emulsion with a solid content of 60% polyvinylidene fluoride);
[0045] And sodium carboxymethylcellulose (CMC) accounting for 1.5% by mass of the active substance mixture as a negative electrode thickener;
[0046] And the distilled water that accounts for 30% of the mass ratio of active substance mixture;
[0047] mixing the active material mixture, negative el...
Embodiment 3
[0051] In the first step, the negative electrode active material coating 1 is an active material mixture composed of ultrafine cadmium oxide (CdO), nano-graphite and carbon nanotubes mixed in a mass ratio of 7.5:0.7:4 in sequence;
[0052] And a mixed binder of polytetrafluoroethylene (PTFE) and polyvinylidene fluoride (PVDF) mixed in an equal mass ratio of 3.5% of the mass of the active material mixture, as a negative electrode mixed binder (polytetrafluoroethylene is polytetrafluoroethylene Polytetrafluoroethylene emulsion with a solid content of 60% vinyl fluoride, polyvinylidene fluoride is a polyvinylidene fluoride emulsion with a solid content of 60% polyvinylidene fluoride);
[0053] And sodium carboxymethylcellulose (CMC) accounting for 1.8% by mass of the active substance mixture as a negative electrode thickener;
[0054] And the distilled water that accounts for 40% of the mass ratio of active substance mixture;
[0055] mixing the active material mixture, negative...
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